/Engine/Source/Runtime/Engine/Classes/Materials/MaterialInstanceDynamic.h
Get the current MID vector parameter value, using MPI (to allow access to layer parameters)
[FLinearColor](API\Runtime\Core\Math\FLinearColor) K2_GetVectorParameterValueByInfo ( const [FMaterialParameterInfo](API\Runtime\Engine\FMaterialParameterInfo) & ParameterInfo )